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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

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/*

 * @test

 * @bug 8178870 8010319

 * @summary Redefine class with CFLH twice to test deleting the cached_class_file

 * @library /test/lib

 * @modules java.base/jdk.internal.misc

 * @modules java.compiler

 *          java.instrument

 *          jdk.jartool/sun.tools.jar

 * @run main RedefineClassHelper

 * @run main/othervm/native -Xlog:redefine+class+load+exceptions -agentlib:RedefineDoubleDelete -javaagent:redefineagent.jar RedefineDoubleDelete

 */

// package access top-level class to avoid problem with RedefineClassHelper

// and nested types.

// The ClassFileLoadHook for this class turns foo into faa and prints out faa.

class RedefineDoubleDelete_B {

    int faa() { System.out.println("foo"); return 1; }

}

public class RedefineDoubleDelete {

    // Class gets a redefinition error because it adds a data member

    public static String newB =

                "class RedefineDoubleDelete_B {" +

                "   int count1 = 0;" +

                "}";

    public static String newerB =

                "class RedefineDoubleDelete_B { " +

                "   int faa() { System.out.println(\"baa\"); return 2; }" +

                "}";

    public static void main(String args[]) throws Exception {

        RedefineDoubleDelete_B b = new RedefineDoubleDelete_B();

        int val = b.faa();

        if (val != 1) {

            throw new RuntimeException("return value wrong " + val);

        }

        // Redefine B twice to get cached_class_file in both B scratch classes

        try {

            RedefineClassHelper.redefineClass(RedefineDoubleDelete_B.class, newB);

        } catch (java.lang.UnsupportedOperationException e) {

            // this is expected

        }

        try {

            RedefineClassHelper.redefineClass(RedefineDoubleDelete_B.class, newB);

        } catch (java.lang.UnsupportedOperationException e) {

            // this is expected

        }

        // Do a full GC.

        System.gc();

        // Redefine with a compatible class

        RedefineClassHelper.redefineClass(RedefineDoubleDelete_B.class, newerB);

        val = b.faa();

        if (val != 2) {

            throw new RuntimeException("return value wrong " + val);

        }

        // Do another full GC to clean things up.

        System.gc();

    }

}